64980898 has 12 divisors (see below), whose sum is σ = 100719990. Its totient is φ = 31441440.

The previous prime is 64980871. The next prime is 64980899. The reversal of 64980898 is 89808946.

It can be written as a sum of positive squares in only one way, i.e., 53978409 + 11002489 = 7347^2 + 3317^2 .

It is not an unprimeable number, because it can be changed into a prime (64980899) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14983 + ... + 18826.

Almost surely, 2^64980898 is an apocalyptic number.

64980898 is a deficient number, since it is larger than the sum of its proper divisors (35739092).

64980898 is a wasteful number, since it uses less digits than its factorization.

64980898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33873 (or 33842 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 64980898 is about 8061.0730055000. The cubic root of 64980898 is about 402.0331853829.

The spelling of 64980898 in words is "sixty-four million, nine hundred eighty thousand, eight hundred ninety-eight".